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Finding the Third Proportional to 5,671 and 8,682

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Solution

The third proportional to 5,671 and 8,682 is: 13,291.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671 : 8,682 = 8,682 : x
  2. Step 2: Convert to fraction form
    5,671/8,682 = 8,682/x
  3. Step 3: Cross multiply
    5,671x = 8,682 × 8,682
  4. Step 4: Simplify right side
    5,671x = 75,377,124
  5. Step 5: Solve for x
    x = 75,377,124/5,671
  6. Step 6: Final answer
    x = 13,291.68

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.